hi guys how can i check the total statistics for my DSL usage plz tell me
In case you want to go the DIY route:
If you are using a single device, you may use a software utility/app on the device under the Bandwidth Usage Monitor/Meter category! But, for many devices, a better option would be a router capable of doing so by default! Though one can also try an alternative firmware (openwrt, tomato, dd-wrt, gargoyle, ... ) or specifc router distro (using spare/old pc, dedicated hardware, ...) that can provide much better traffic monitoring/metering options if the router is supported!
(for basic estimate, you may also look at wan statistics of your router ... http://screenshots.portforward.com/routers/Tenda/W150D/WAN_Statistics.jpg ... note that these may be reset when the connection goes down or in case of power loss)